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Keywords: VHTR
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Proceedings Papers

Improvement of Nuclear Grade Graphite Based on Isotropic and Highly Crystalline Natural Graphite by Generation of Silicon- or Zirconium-Carbide in Situ

Karl-Heinz Grosse, Milan Hrovat, Richard Seemann, Robert Feher
Proc. ASME. HTR2008, Fourth International Topical Meeting on High Temperature Reactor Technology, Volume 2, 619-622, September 28–October 1, 2008
Publisher: American Society of Mechanical Engineers
Paper No: HTR2008-58026
https://doi.org/10.1115/HTR2008-58026
..., mechanical properties and in particular stability to fast neutron irradiation are considerably improved. HTR VHTR Molded Block Fuel Elements Fuel Spheres Reflector Graphite Natural Graphite Hot Molding Carbonising High Temperature Annealing In Situ Formating of SiC ZrC Silicon Carbide...
View Paper titled, Improvement of Nuclear Grade Graphite Based on Isotropic and Highly Crystalline Natural Graphite by Generation of Silicon- or Zirconium-Carbide in Situ
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Topics: Fuels, Graphite, Silicon, Zirconium
Proceedings Papers

Development of a CFD Analysis Plan for the First VHTR Standard Problem

Richard W. Johnson
Proc. ASME. HTR2008, Fourth International Topical Meeting on High Temperature Reactor Technology, Volume 1, 567-574, September 28–October 1, 2008
Publisher: American Society of Mechanical Engineers
Paper No: HTR2008-58283
https://doi.org/10.1115/HTR2008-58283
... 10 07 2009 Data from a scaled model of a portion of the lower plenum of the helium-cooled very high temperature reactor (VHTR) are under consideration for acceptance as a computational fluid dynamics (CFD) validation data set or standard problem. A CFD analysis will help determine...
View Paper titled, Development of a CFD Analysis Plan for the First <span class="search-highlight">VHTR</span> Standard Problem
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Topics: Computational fluid dynamics, Turbulence, Very high temperature reactors
Proceedings Papers

Air Ingress Phenomena in a Depressurization Accident of the Very-High-Temperature Reactor

Tetsuaki Takeda
Proc. ASME. HTR2008, Fourth International Topical Meeting on High Temperature Reactor Technology, Volume 1, 633-640, September 28–October 1, 2008
Publisher: American Society of Mechanical Engineers
Paper No: HTR2008-58099
https://doi.org/10.1115/HTR2008-58099
... 10 07 2009 The inherent properties of the Very-High-Temperature Reactor (VHTR) facilitate the design of the VHTR with high degree of passive safe performances, compared to other type of reactors. However, it is still not clear if the VHTR can maintain a passive safe function during...
View Paper titled, Air Ingress Phenomena in a Depressurization Accident of the Very-High-Temperature Reactor
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Topics: Accidents, Very high temperature reactors